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1.
Ch. Deliveliotis F. Sofras D. Picramenos Ch. Bellos N. J. Stavropoulos Th. Becopoulos 《International urology and nephrology》1995,27(4):365-367
We present a very rare case of gigantic hydrocalycosis which was caused by an obstructed stone. It was so large that it displaced
the rest kidney into the contralateral lumbar fossa giving the appearance of a crossed ectopic kidney. 相似文献
2.
Carotid baroreflex function ceases
during vasovagal syncope 总被引:2,自引:0,他引:2
Shigehiko Ogoh PhD Stefanos Volianitis PhD Peter B. Raven PhD Niels H. Secher MD 《Clinical autonomic research》2004,14(1):30-33
Abstract. Despite the arterial baroreflex control of heart rate and
blood pressure, vasovagal syncope is a common cause of loss of
consciousness in people exposed to stimuli that reduce the
central blood volume, such as head-up tilt. Carotid baroreflex
function was evaluated using a rapid pulse train of neck
pressure and neck suction in three conscious volunteers who
developed a vasovagal episode during head-up tilt. The maximal
gain of the carotid-heart rate and carotid-blood pressure
baroreflex function curves were identified as measures of
carotid baroreceptor responsiveness. When presyncopal symptoms
developed, one further baroreflex assessment was obtained before
the subjects were returned to the supine position. The
bradycardia and hypotension exhibited during pre-syncope and
syncope reflected a leftward and downward relocation of both the
cardiac and vasomotor stimulusresponse curves. In addition,
during the vasovagal syncope, baroreflex control was suppressed
as blood pressure remained low during neck pressure stimuli. In
conclusion, arterial baroreflex function ceases during vasovagal
syncope. 相似文献
3.
N. Goulandris P. Karakitsos J. Georgoulakis Ch. Bellos Ch. Deliveliotis S. Legaki 《The Journal of urology》1996,156(3):958-960
Purpose
We compared the results of deoxyribonucleic acid (DNA) ploidy determinations performed by flow cytometry and image cytometry in transitional cell carcinomas of the bladder.Materials and Methods
In 81 cases of transitional cell carcinoma of the bladder DNA indexes were measured by flow cytometry of bladder washings and tumor tissue samples, and by image cytometry of imprints from tumor tissue samples.Results
There was good correlation between bladder washings and tissue samples analyzed by flow cytometry in 68 cases but aneuploidy was missed with bladder washings in 13 (16 percent). There was also good correlation between flow and image cytometry in 75 cases (92.59 percent) regarding the detection of aneuploidy. There was agreement between detection of aneuploidy and DNA index in 45 cases (55.5 percent), while both methods detected an aneuploid population in 30 (37 percent) but there was disagreement regarding DNA index. Aneuploid populations were missed by flow cytometry in 6 cases (7.4 percent). Furthermore, in 10 cases peridiploid peaks were found on the image cytometry histograms, which were not visible on flow cytometry. However, it was not possible to assess accurately if these were true peridiploid populations.Conclusions
There is good overall correlation between DNA content measured by flow and image cytometry but image cytometry has the advantage of visual discrimination, permitting preferential selection and analysis of tumor cells. However, certain problems remain with image cytometry, particularly in the case of peridiploid peaks, which cannot be classified accurately as showing true peridiploid or right shifted diploid populations. 相似文献4.
5.
Stefanos Tyrovolas MSc PhD cand. George Pounis MSc Vassiliki Bountziouka MSc PhD cand. Evangelos Polychronopoulos MD PhD 《Journal of nutrition in gerontology and geriatrics》2013,32(3):311-324
The aim of the present work was to evaluate the repeatability and the validity of a short food frequency questionnaire (FFQ) that could be used for older people living in Mediterranean areas. The semi-quantitative FFQ included questions regarding the frequency of consumption of the main food groups and beverages typically consumed in the Mediterranean areas as well as some questions regarding eating habits of older persons. During 2006–2007, for the repeatability assessment (within 10–30 days), 150 individuals (51 ± 17 yrs, 40% males) were studied, while another 190 individuals (74 ± 9 yrs, 52% males) were enrolled for the validation purposes. Agreement of the FFQ with the 3-day food records was evaluated using the Bland–Altman method and the Kendall's tau-b coefficient. Repeatability was tested using the Cohen's kappa coefficient. Between 3-day food records and the FFQ, good agreement for alcohol (tau-b = 0.64, p < 0.001) was found, while moderate agreement for food and beverage groups of greens (tau-b = 0.32, p < 0.001), fruits (tau-b = 0.35, p < 0.001), cereals (tau-b = 0.61, p < 0.001), sweets (tau-b = 0.51, p < 0.001), and coffee (tau-b = 0.58, p < 0.001) was observed. Low, but still significant, agreement for fish (tau-b = 0.21, p = 0.001), legumes (tau-b = 0.23, p < 0.001), vegetables (tau-b = 0.23, p < 0.001), pasta (tau-b = 0.25, p < 0.001), potatoes (tau-b = 0.17, p = 0.006) and meat consumption (tau-b = 0.14, p < 0.001) were also found. The FFQ was also valid regarding the estimation of macronutrients and energy intake. Sensitivity analyses by sex, age category (≤ or > 75 yrs), and education status showed similar validity of the FFQ in each subgroup, except for elders older than 75 years. The repeatability of the FFQ was fair in all foods tested (Cohen's kappa coefficients varied between 0.15–0.39, p-values < 0.05). The suggested FFQ seems to be a reasonably valid and repeatable measure of dietary intake and can be used in older persons living in the Mediterranean areas. 相似文献
6.
7.
Kostas Fasoulas Athanasios Beltsis Taxiarchis Katsinelos Eleni Dimou Mary Arvaniti Anna Charsoula Victor Gourvas Stefanos Atmatzidis Grigoris Chatzimavroudis Panagiotis Katsinelos 《Saudi Journal Of Gastroenterology》2012,18(2):146-148
Mesenteric panniculitis (MP) is a rare inflammatory and fibrotic disease of the mesentery of unknown etiology. It has various clinical and radiological manifestations, posing a diagnostic challenge for clinicians. Its diagnosis is indicated via radiologic imaging and is usually confirmed via peritoneal biopsies. We describe a case of a patient with histopathologically proven MP, in which steroid dependence was successfully managed with colchicine. 相似文献
8.
Georgios K. Nikolopoulos Vana Sypsa Stefanos Bonovas Dimitrios Paraskevis Melpomeni Malliori-Minerva Angelos Hatzakis 《Substance use & misuse》2015,50(7):825-838
Big Events are processes like macroeconomic transitions that have lowered social well-being in various settings in the past. Greece has been hit by the global crisis and experienced an HIV outbreak among people who inject drugs. Since the crisis began (2008), Greece has seen population displacement, inter-communal violence, cuts in governmental expenditures, and social movements. These may have affected normative regulation, networks, and behaviors. However, most pathways to risk remain unknown or unmeasured. We use what is known and unknown about the Greek HIV outbreak to suggest modifications in Big Events models and the need for additional research. 相似文献
9.
Molassiotis Alex Kwok Stephen W. H. Leung Angela Y. M. Tyrovolas Stefanos 《Age (Dordrecht, Netherlands)》2022,44(2):925-951
GeroScience - The needs of the aging populations are putting increasing burden on healthcare particularly in the Western Pacific Region (WPR), which is the home of aging economies such as Hong Kong... 相似文献
10.
Daniele Piovani Maria Nefeli Christodoulou Andreas Hadjidemetriou Katerina Pantavou Paraskevi Zaza Pantelis G. Bagos Stefanos Bonovas Georgios K. Nikolopoulos 《The Journal of infection》2021,82(1):133-142
ObjectivesTo estimate the effect of early application of social distancing interventions on Covid-19 cumulative mortality during the first pandemic wave.MethodsEcological longitudinal study using multivariable negative binomial regression for panel data. Daily numbers of Covid-19 cases and deaths, and data on social distancing interventions, for the 37 member countries of the Organization for Economic Cooperation and Development (OECD) were analysed.ResultsCovid-19 cumulative mortality over the first pandemic wave varied widely across countries (range, 4.16 to 855 deaths per million population). On average, one-day delay in application of mass gatherings ban was associated with an adjusted increase in Covid-19 cumulative mortality by 6.97% (95% CI, 3.45 to 10.5), whilst a one-day delay in school closures was associated with an increase of 4.37% (95% CI, 1.58 to 7.17) over the study period. We estimated that if each country had enacted both interventions one week earlier, Covid-19 cumulative mortality could have been reduced by an average of 44.1% (95% CI, 20.2 to 67.9).ConclusionsEarly application of mass gatherings ban and school closures in outbreak epicentres was associated with an important reduction in Covid-19 cumulative mortality during the first pandemic wave. These findings may support policy decision making. 相似文献